<template>
    <div>
        <el-breadcrumb separator="/">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <el-card >
            
            <el-row :gutter="20">
              <el-col :span="10">
                  <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                     <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                 </el-input>
              </el-col>
              <el-col :span="4">
                  <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
              </el-col>
            </el-row>
            <el-table
                :data="userlist"
                border
                stripe
                >
                <el-table-column
                    type="index"
                    label="#"
                    ></el-table-column>
                <el-table-column
                    prop="username"
                    label="姓名"
                    >
                </el-table-column>
                <el-table-column
                    prop="email"
                    label="邮箱"
                    >
                </el-table-column>
                <el-table-column
                    prop="mobile"
                    label="电话">
                </el-table-column>
                <el-table-column
                    prop="role_name"
                    label="角色">
                </el-table-column>
                <el-table-column
                    label="状态">
                   <template slot-scope="scope">
                        <el-switch @change="userStateChanged(scope.row)"
                            v-model="scope.row.mg_state">
                        </el-switch>
                   </template>
                </el-table-column>

                <el-table-column
                    label="操作"
                    width="180px">
                    <template slot-scope="scope">
                        <el-button type="primary" icon="el-icon-edit" size="mini"
                            @click="showEditDialog(scope.row.id)"
                        ></el-button>
                        <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
                        <el-tooltip  effect="dark" content="分配角色" placement="top" :enterable ="false">
                            <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                   </template>
                </el-table-column>
                
            </el-table>
            <el-pagination
                    @size-change="handleSizeChange"
                    @current-change="handleCurrentChange"
                    :current-page="queryInfo.pagenum"
                    :page-sizes="[1, 2, 5, 10]"
                    :page-size="queryInfo.pagesize"
                    layout="total, sizes, prev, pager, next, jumper"
                    :total="total">
            </el-pagination>
        </el-card>

        <!-- 添加用户 -->
        <el-dialog
            title="添加用户"
            :visible.sync="addDialogVisible"
            width="50%"
            @close= "addDialogClose"
            >
            <el-form :model="addForm" 
            :rules="addFormRules" 
            ref="addFormRef"
            label-width="70px"
            >
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>
        <el-dialog
            title="修改用户"
            :visible.sync="editDialogVisible"
            width="50%"
            @close= "editDialogClose"
            >
            <el-form :model="editForm" 
            :rules="editFormRules" 
            ref="editFormRef"
            label-width="70px"
            >
                <el-form-item label="用户名" >
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 分配权限对话框 -->
        <el-dialog
            title="分配角色"
            :visible.sync="setRoleDialogVisible"
            width="50%"
            @close="setRoleDialogClosed"
            >
            <div>
                <p>当前的用户：{{ userInfo.username }}</p>
                <p>当前的角色：{{ userInfo.role_name }}</p>
                <p>分配新角色：
                    <el-select v-model="selectedRoleId" placeholder="请选择">
                        <el-option v-for="item in rolesList"
                        :key="item.id" :label="item.roleName"
                        :value="item.id"
                        >
                        </el-option>   
                    </el-select>
                </p>
            </div>
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>

<script>
export default {
    data(){
        // 自定义校验规则
        var checkEmail=( rule, value, cb) => {
            const regEmail = /^[A-Za-z\d]+([-_.][A-Za-z\d]+)*@([A-Za-z\d]+[-.])+[A-Za-z\d]{2,4}$/
            if (regEmail.test(value)){
                return cb()
            }
            cb(new Error('请输入合法的邮箱'))
        }
        var checkMobile = (rule, value, cb) => {
            const regMobile = /^((13[0-9])|(14[5|7])|(15([0-3]|[5-9]))|(17[013678])|(18[0,5-9]))\d{8}$/
            if (regMobile.test(value)){
                return cb()
            }
            cb(new Error('请输入合法的手机号'))
        }

        return{
           
            queryInfo:{
                query:'',
                pagenum:1,
                pagesize: 2
            },
            userlist:[],
            total: 0,
            addDialogVisible:false,
            addForm:{
                username:'',
                password:'',
                email:'',
                mobile:''
            },
            addFormRules:{
                username:[
                    {required: true, message:'请输入用户名', trigger: 'blur'},
                    {min:3, max:10, message:'用户名长度在3~10字符之间',trigger: 'blur'}
                ],
                password:[
                    {required: true, message:'请输入密码', trigger: 'blur'},
                    {min:6, max:15, message:'密码长度在6~15字符之间',trigger: 'blur'}
                ],
                email:[
                    {required: true, message:'请输入邮箱', trigger: 'blur'},
                    { validator: checkEmail, trigger: 'blur'}
                ],
                mobile:[
                    {required: true, message:'请输入手机', trigger: 'blur'},  
                    { validator: checkMobile, trigger: 'blur'}
                ]
            },
            editDialogVisible:false,
            editForm:{},
            editFormRules:{
                email:[
                    {required: true, message:'请输入邮箱', trigger: 'blur'},
                    { validator: checkEmail, trigger: 'blur'}
                ],
                mobile:[
                    {required: true, message:'请输入手机', trigger: 'blur'},  
                    { validator: checkMobile, trigger: 'blur'}
                ]
            },
            // 分配角色对话框显示隐藏
            setRoleDialogVisible: false,
            // 需要被分配角色的用户信息
            userInfo: {},
            //所有角色的数据列表
            rolesList:[],
            //已选择的角色
            selectedRoleId:''
        }
    },
    created(){
        this.getUserList()
    },
    methods:{
        async getUserList() {
            const{data:res } = await this.$http.get('users',{ params:this.queryInfo})
            // console.log(res);
            if (res.meta.status !== 200) 
            {return this.$message.error('获取列表失败');}
            this.userlist = res.data.users
            this.total = res.data.total
        },
        handleSizeChange(newSize){
            // console.log(newSize);
            this.queryInfo.pagesize = newSize
            this.getUserList()
        },
        handleCurrentChange(newPage){
            //  console.log(newPage);
             this.queryInfo.pagenum = newPage
              this.getUserList()
        },
        async userStateChanged(userinfo){
            // console.log(userinfo);
            const {data: res}  = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
            if(res.meta.status !== 200) {
                userinfo.mg_state = !userinfo.mg_state
                return this.$message.error('更新用户状态失败！')

            }
            this.$message.success('更新用户状态成功!')
        },
        // 监听表单关闭
        addDialogClose(){
            this.$refs.addFormRef.resetFields()
        },
        //添加用户按钮
       addUser(){
            this.$refs.addFormRef.validate(async valid =>{
                // console.log(valid);
                if(!valid) return
                const { data: res } = await this.$http.post('users', this.addForm)
                if(res.meta.status !== 201){
                    this.$message.error('添加用户失败!')
                }
                this.$message.success('添加用户成功!')
                this.addDialogVisible = false
                this.getUserList()
            } )
        },
        // 用户编辑对话框
        async showEditDialog(id){
            const{data:res} = await this.$http.get('users/' + id)
             if(res.meta.status !== 200){
                    this.$message.error('查询用户失败!')
                }
            this.editForm =  res.data
            this.editDialogVisible =true
        },
        editDialogClose(){
            this.$refs.editFormRef.resetFields()
        },
        editUserInfo(){
            this.$refs.editFormRef.validate(async valid =>{
                if(!valid) return
                const { data: res } = await this.$http.put('users/' + this.editForm.id, {
                    email: this.editForm.email,
                    mobile: this.editForm.mobile
                })
                if(res.meta.status !== 200){
                    return this.$message.error('更新用户信息失败!')
                }
                this.editDialogVisible =false
                this.getUserList()
                this.$message.success('更新用户信息成功!')
            })
            
        },
        async removeUserById(id){
           
            const confirmResult =  await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning',
            center: true
            
            }).catch(err=> {
                return err
            })
            if (confirmResult !== 'confirm'){
                return this.$message.info('已取消删除')
            }
            const {data:res} = await this.$http.delete('users/'+id)
            if(res.meta.status !== 200){
                return this.$message.error('删除用户失败!')
            }
            this.$message.success('删除用户成功!')
            this.getUserList()
        },
        // 展示分配角色对话框
        async setRole(userInfo){
            this.userInfo = userInfo
            //在展示对话框之前，获取所有角色的列表
            const {data: res} = await this.$http.get('roles')
            if(res.meta.status !== 200){
                return this.$message.error('获取角色列表失败！')
            }
            this.rolesList = res.data
            this.setRoleDialogVisible = true
        },
        //点击按钮，分配角色
        async saveRoleInfo(){
            if(!this.selectedRoleId){
                return this.$message.error('请选择要分配的角色')
            }
            const {data: res} = await this.$http.put(`users/${this.userInfo.id}/role`,
            {
                rid: this.selectedRoleId
            })
            
            if(res.meta.status !== 200){
                return this.$message.error('更新角色失败！')
            }
            this.$message.success('更新角色成功！')
            this.getUserList()
            this.setRoleDialogVisible = false
        },
        //监听分配角色对话框的关闭事件
        setRoleDialogClosed(){
            this.selectedRoleId = ''
            this.userInfo = {}
        }
    }
}
</script>

<style lang="less" scoped>

</style>